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10897902178669 = 1119913309374069
BaseRepresentation
bin1001111010010101110110…
…0101101001000101101101
31102120211101112120222012101
42132211131211221011231
52412022400424204134
635102232132535101
72203230114053542
oct236453545510555
942524345528171
1010897902178669
113521857743680
121280105481491
1361088b10a31c
14299665a74bc9
1513d72d1d7e14
hex9e95d96916d

10897902178669 has 16 divisors (see below), whose sum is σ = 11949292080000. Its totient is φ = 9856631949120.

The previous prime is 10897902178643. The next prime is 10897902178753. The reversal of 10897902178669 is 96687120979801.

It is a de Polignac number, because none of the positive numbers 2k-10897902178669 is a prime.

It is a super-2 number, since 2×108979021786692 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10897902178369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28946367 + ... + 29320435.

It is an arithmetic number, because the mean of its divisors is an integer number (746830755000).

Almost surely, 210897902178669 is an apocalyptic number.

It is an amenable number.

10897902178669 is a deficient number, since it is larger than the sum of its proper divisors (1051389901331).

10897902178669 is a wasteful number, since it uses less digits than its factorization.

10897902178669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387588.

The product of its (nonzero) digits is 164602368, while the sum is 73.

The spelling of 10897902178669 in words is "ten trillion, eight hundred ninety-seven billion, nine hundred two million, one hundred seventy-eight thousand, six hundred sixty-nine".

Divisors: 1 11 199 2189 13309 146399 374069 2648491 4114759 29133401 74439731 818837041 4978484321 54763327531 990718379879 10897902178669